Remove OS(WINCE) as blink and chromium does not support WinCe.

Source/wtf/Atomics.h

Index: Source/wtf/Atomics.h
diff --git a/Source/wtf/Atomics.h b/Source/wtf/Atomics.h
index d760f2231419535d5373a1d7ed3cb8c867807f8b..9b4a4681d4013fd7ca9fdd3a8162040421bec577 100644
--- a/Source/wtf/Atomics.h
+++ b/Source/wtf/Atomics.h
@@ -76,10 +76,7 @@ namespace WTF {
 #if OS(WINDOWS)
 #define WTF_USE_LOCKFREE_THREADSAFEREFCOUNTED 1
 
-#if OS(WINCE)
-inline int atomicIncrement(int* addend) { return InterlockedIncrement(reinterpret_cast<long*>(addend)); }
-inline int atomicDecrement(int* addend) { return InterlockedDecrement(reinterpret_cast<long*>(addend)); }
-#elif COMPILER(MINGW) || COMPILER(MSVC7_OR_LOWER)
+#if COMPILER(MINGW) || COMPILER(MSVC7_OR_LOWER)
 inline int atomicIncrement(int* addend) { return InterlockedIncrement(reinterpret_cast<long*>(addend)); }
 inline int atomicDecrement(int* addend) { return InterlockedDecrement(reinterpret_cast<long*>(addend)); }
 
@@ -121,11 +118,7 @@ inline int64_t atomicDecrement(int64_t volatile* addend) { return __sync_sub_and
 #if OS(WINDOWS)
 inline bool weakCompareAndSwap(volatile unsigned* location, unsigned expected, unsigned newValue)
 {
-#if OS(WINCE)
-    return InterlockedCompareExchange(reinterpret_cast<LONG*>(const_cast<unsigned*>(location)), static_cast<LONG>(newValue), static_cast<LONG>(expected)) == static_cast<LONG>(expected);
-#else
     return InterlockedCompareExchange(reinterpret_cast<LONG volatile*>(location), static_cast<LONG>(newValue), static_cast<LONG>(expected)) == static_cast<LONG>(expected);
-#endif
 }
 
 inline bool weakCompareAndSwap(void*volatile* location, void* expected, void* newValue)